An airbag device is provided to prevent an airbag from being deployed or to reduce the deployment force of an airbag when an airbag device or a vehicle-body component adjacent to the airbag device is leaned against by a vehicle occupant. The digital audio player comprises a casing which has the same shape as that of a cassette tape and which contains the semiconductor memory device and the digital audio reproducing unit. An adjustable brace mechanism is used to support the table at a plurality of angular levels with respect to the first side of the tool box.